U.S. patent number 4,907,778 [Application Number 07/276,958] was granted by the patent office on 1990-03-13 for combined accessory carrier and service stand for a chainsaw.
Invention is credited to Martin V. Rockwell.
United States Patent |
4,907,778 |
Rockwell |
March 13, 1990 |
Combined accessory carrier and service stand for a chainsaw
Abstract
A combined accessory carrier and service stand for a chainsaw is
provided. In the accessory carrier configuration, the box-like body
is utilized to receive chainsaw accessories, spare parts, tools,
fuel and oil for the chainsaw. These items may then be conveniently
carried into the field in the combined accessory carrier and
service stand. Once in the field, the combined accessory carrier
and service stand may readily be converted into the service stand
configuration where it supports the chainsaw power head and clamps
the cutting chain and chain bar of the chainsaw in either a
vertical position or a horizontal position, depending upon the type
of service that the chainsaw requires. The handle utilized in the
accessory carrier configuration doubles as a vertical support pole
when in the service stand configuration.
Inventors: |
Rockwell; Martin V.
(Washington, PA) |
Family
ID: |
23058814 |
Appl.
No.: |
07/276,958 |
Filed: |
November 28, 1988 |
Current U.S.
Class: |
248/676; 24/327;
24/518; 83/574 |
Current CPC
Class: |
B23D
63/003 (20130101); B25H 1/00 (20130101); B25H
3/006 (20130101); F16M 13/00 (20130101); F16M
11/041 (20130101); F16M 11/22 (20130101); F16M
13/02 (20130101); Y10T 83/8763 (20150401); F16M
2200/02 (20130101); Y10T 24/44538 (20150115); Y10T
24/3428 (20150115) |
Current International
Class: |
B23D
63/00 (20060101); B25H 1/00 (20060101); B25H
3/00 (20060101); F16M 13/00 (20060101); F16M
001/00 () |
Field of
Search: |
;248/676,545,156 ;83/574
;294/141 ;24/518,329 ;224/42.45R ;30/297 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
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|
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|
1011892 |
|
Apr 1952 |
|
FR |
|
360328 |
|
Nov 1931 |
|
GB |
|
Primary Examiner: Johnson; Blair M.
Attorney, Agent or Firm: Buchanan Ingersoll
Claims
I claim:
1. A combined accessory carrier and service stand for a chainsaw
having a cutting chain and chain bar extending from a power head
comprising:
a box-like body having a bottom, two side walls, a first end wall
and a second end wall;
an elongated member selectively securable to said first and second
end walls to serve as a handle for said body or selectively
securable to said body bottom to serve as a vertical support pole
for said body;
ground engaging means to support said elongated member when said
elongated member is positioned to serve as a support pole for said
body;
a chainsaw power head support table top hingedly secured to said
body adjacent said first end wall; and
clamp means hingedly secured to said body adjacent said second end
wall, said clamp means having a first fixed clamp member and a
second fixed clamp member oriented at 90.degree. to each other and
cooperating with a pivoting clamp member to selectively clamp said
chainsaw chain bar in either a vertical position against said first
fixed clamp member or in a horizontal position against said second
fixed clamp member as said chainsaw power head is supported on said
support table top.
2. The combined accessory carrier and service stand of claim 1
wherein said elongated member is formed of a section of cylindrical
metal pipe having external threads formed on one end.
3. The combined accessory carrier and service stand of claim 2
wherein said body second end wall and said body bottom each have a
threaded receptacle fixed thereto to selectively threadingly
receive said elongated member.
4. The combined accessory carrier and service stand of claim 1
wherein said ground engaging means has a hollow tubular body and at
least one pointed spike attached to said body so that said spike
may be driven into the earth.
5. The combined accessory carrier and service stand of claim 1
wherein said body bottom extends beyond said second end wall so
that said body bottom may support an accessory on the outside of
said box-like body.
6. The combined accessory carrier and service stand of claim 1
wherein said power head support table top is formed from a rigid
plastic material and is contoured to support said chainsaw power
head.
7. The combined accessory carrier and service stand of claim 1
wherein said power head support table top may be selectively
positioned over the top of said box-like body or pivoted about
hinges to a position outside said body and adjacent to said body
first end wall.
8. The combined accessory carrier and service stand of claim 1
wherein said clamp means may be slectively positioned to an active
position on top of said body second end wall or pivoted about
hinges to a storage position within said body adjacent to said body
second end wall.
9. The combined accessory carrier and service stand of claim 1
wherein said box-like body has sufficient capacity to carry said
ground engaging means and other chainsaw accessories, tools, and
fuel and oil for said chainsaw.
10. A combined accessory carrier and service stand alternatively
having an accessory carrier configuration or a service stand
configuration for use with a chainsaw having a cutting chain and
chain bar extending from a power head comprising:
a box-like body having a bottom, two side walls, a first end wall
and a second end wall;
an elongated member selectively securable to said first and second
end walls by means of a threaded receptacle attached to one of said
end walls and a hole through said other end wall to serve as a
handle for said body when said carrier and service stand is in said
carrier configuration or selectively securable to said body bottom
by means of a threaded receptacle attached to said bottom to serve
as a vertical support pole for said body when said carrier and
service stand is in said service stand configuration;
a ground engaging support having a pointed member formed to be
driven into the ground and a hollow tubular opening to receive said
elongated member when said carrier and service stand is in said
service stand configuration;
a chainsaw power head support table top hingedly secured to said
body adjacent said first end wall whereby said table top is
alternatively movable to a horizontal position atop said body in
said service stand configuration to bear the weight of said
chainsaw power head and to a vertical position abutting said first
end wall in said carrier configuration; and
clamp means hingedly secured to said body adjacent said second end
wall whereby said clamp means is alternatively positionable to an
active position atop said second end wall in said service stand
configuration and to a storage position within said body in said
carrier configuration, said clamp means having a first fixed clamp
member extending vertically upwardly in said service stand
configuration and a second fixed clamp member extending
horizontally at 90.degree. to said first fixed clamp member in said
service stand configuration with a pivoting clamp member movable
into alternate engagement with said first fixed clamp member or
said second fixed clamp member to selectively clamp said chainsaw
chain bar in either a vertical position against said first fixed
clamp member or in a horizontal position against said second fixed
clamp member in said service stand configuration with said chainsaw
power head resting on said support table top in either clamped
position of said chain bar.
11. The combined accessory carrier and service stand of claim 10
wherein said elongated member is formed of a section of cylindrical
metal pipe having external threads formed on one end.
12. The combined accessory carrier and service stand of claim 10
wherein said body bottom extends beyond said second end wall so
that said body bottom may support an accessory on the outside of
said box-like body.
13. The combined accessory carrier and service stand of claim 10
wherein said power head support table top is formed from a rigid
plastic material and is contoured to support said chainsaw power
head.
14. The combined accessory carrier and service stand of claim 10
wherein said box-like body has sufficient capacity to carry said
ground engaging means and other chain saw accessories, tools, and
fuel and oil for said chainsaw.
15. The combined accessory carrier and service stand of claim 10
wherein said elongated member is secured to said second end wall by
means of said threaded receptacle attached to said second end wall
and said elongated member extends through said hole in said first
end wall.
16. The combined accessory carrier and service stand of claim 10
wherein said ground engaging support hollow tubular opening has a
pin extending diagonally across said tubular opening and said
elongated member has a slotted end portion to receive said pin when
said elongated member is inserted into said hollow tubular
member.
17. The combined accessory carrier and service stand of claim 10
wherein said clamp means clamps said chain bar in said vertical
position without binding said cutting chain so that said cutting
chain may be serviced and tensioned while said chain bar is
clamped.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to a combined accessory carrier and service
stand for a chainsaw that is selectively convertible from an
accessory carrier to a service stand and back again. When in the
accessory carrier configuration the carrier and service stand may
be utilized to carry chainsaw accessories, tools, fuel and oil in a
compact carrying arrangement. When in the service stand
configuration, the accessory carrier and service stand may be
utilized to support a chainsaw and clamp the cutting chain bar in
positions to service the chainsaw chain and the power head of the
chainsaw.
2. Description of the Prior Art
When a chainsaw is utilized in the field, it is often necessary to
service the chainsaw by adjusting the tension of the chain,
sharpening the chain, refueling the chainsaw, adding oil to the
chainsaw or replacing parts of the chainsaw. Various clamp and
vises have been developed to aid in making these field repairs.
U.S. Pat. No. 4,109,900 discloses a vise that may be secured to a
tree stump to make field repairs on chainsaws. U.S. Pat. No.
4,657,234 discloses a clamp which may be clamped to a tree and
which holds a chainsaw for servicing in the field. A major drawback
to these devices is the fact that they are additional loose items
which must be transported into the field with the chainsaw.
In order to overcome the drawback of transporting loose accessories
into the field, the combined accessory carrier and service stand of
the present invention serves as a means of carrying the accessories
into the field and also provides a support stand for servicing the
chainsaw.
Various types of work stands and portable work stands are also
well-known. U.S. Pat. Nos. 1,580,627, 3,851,756, 4,256,294, British
Patent No. 360,328 and French Patent No. 1,011,892 all show various
types of work stands for various special purposes. None of these
work stands, however, are particularly adapted for use with a
chainsaw to service the chainsaw as described earlier.
The combined accessory carrier and service stand of the present
invention is particularly adapted for satisfying the servicing
needs in the field for chainsaw users and, at the same time,
providing an accessory carrier that keeps the chainsaw accessories,
tools, fuel, oil, and spare parts all together in one convenient
carrying package.
SUMMARY OF THE INVENTION
In acordance with the present invention there is provided a
combined accessory carrier and service stand for a chainsaw that
has a cutting chain and chain bar extending from a power head. The
accessory carrier and service stand has a box-like body having a
bottom, two side walls, a first end wall and a second end wall. An
elongated member is selectively securable to the first and second
end walls to serve as a handle for the body or is also selectively
securable to the body bottom to serve as a vertical support pole
for the body. A ground engaging support is provided to support the
elongated member when the elongated member is positioned to serve
as a support pole of the body. A chainsaw power head support table
top is secured by hinges to the body adjacent the first end wall. A
clamp is secured by hinges to the body adjacent the second end
wall. The clamp has a first fixed clamp member and a second fixed
clamp member oriented at 90.degree. to each other and cooperating
with a pivoting clamp member. The clamp can selectively clamp the
chainsaw bar in either a vertical position against the first fixed
clamp member or in a horizontal position against the second fixed
clamp member as a chainsaw power head is supported on the support
table top.
Further in accordance with the present invention, there is provided
a two-way clamp for clamping the chain bar of a chainsaw
alternatively in either a vertical position or a horizontal
position. The two-way clamp includes a fixed vertical clamp member
having first and second end portions, a fixed horizontal clamp
member having first and second end portions, and a pivoting clamp
member having first and second end portions. The vertical clamp
member first end portion and the horizontal clamp member first end
portion are rigidly fixed to each other at a connecting
intersection so that the vertical clamp member and the horizontal
clamp member extend away from each other at 90.degree.. The
pivoting clamp member first end portion is pivotally connected to
the connecting intersection so that the pivoting clamp member may
be selectively pivoted to a position adjacent the vertical clamp
member or to a position adjacent the horizontal clamp member. A
first latch is formed on the vertical clamp member second end
portion and on the pivoting clamp member second end portion and the
first latch is operable to latch the pivoting clamp member to the
vertical clamp member. A second latch is formed on the horizontal
clamp member second end portion and on the pivoting clamp member
second end portion and the second latch is operable to latch the
pivoting clamp member to the horizontal clamp member.
The combined accessory carrier and service stand of the present
invention provides a box-like body for carrying the various
accessories, spare parts, tools, fuel, oil, and other materials
that may be required when utilizing a chainsaw in the field. The
chainsaw operator may then take the packed combined accessory
carrier and service stand in one hand and the chainsaw in the other
hand and move into the field to where he may begin his operations.
At that point, he may unpack the combined accessory carrier and
service stand and convert the combined accessory carrier and
service stand to its service stand configuration. This conversion
is accomplished by taking the handle of the unit and threading it
into a receptacle on the body bottom so that it forms a vertical
support pole. A ground support having a large spike-like unit is
driven into the ground and the vertical support pole is positioned
in the ground support to hold the box-like body at a convenient
level above the ground. The power head support table top is moved
on its hinges until it is on top of the box-like body. The clamp is
moved until it extends above the end wall of the body in position
to clamp the chainsaw.
The chainsaw is positioned with the power head on the support table
top and with the cutting chain and chain bar extending toward the
clamp. If it is desired to service the chain as by adjusting the
tension, sharpening the chain, replacing links, or the like, the
chain bar is clamped in a vertical position in the two-way clamp.
If it is desired to service the power head by adding fuel or adding
oil, the chain bar may be unclamped from the vertical position and
clamped in the horizontal position to provide easier access to the
fuel and oil ports.
All the while that the service stand is in place, the chainsaw
operator may service the chainsaw at a convenient height above the
ground and need not be concerned about small parts or tools being
lost in brush or leaves on the ground. When the chainsaw operator
has completed his activity in a specified location, the accessory
carrier and service stand may be converted to the accessory carrier
configuration and moved to a new location with the chainsaw.
Accordingly, the principal object of the present invention is to
provide a combined accessory carrier and service stand for a
chainsaw which is particularly adapted for carrying chainsaw
accessories and for servicing a chainsaw in the field.
Another object of the present invention is to provide a combined
accessory carrier and service stand for a chainsaw which may be
readily converted from the accessory carrier configuration to the
service stand configuration and back again with a minimum of
effort.
A further object of the present invention is to provide a two-way
clamp which permits the chain bar of a chainsaw to be clamped in
either a vertical position or a horizontal position depending upon
the type of servicing of the chainsaw that will be required.
These and other objects of the present invention will be more
completely disclosed and described in the following specification,
the accompanying drawings and the appended claims.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a perspective view of the combined accessory carrier and
service stand for a chainsaw of the present invention shown in the
accessory carrier configuration.
FIG. 2 is a perspective view similar to FIG. 1 showing the combined
accessory carrier and service stand in the service stand
configuration.
FIG. 3 is a perspective view similar to FIG. 2 showing a chainsaw
clamped with the chain and chainbar in a vertical position on the
accessory carrier and service stand of the present invention.
FIG. 4 is a perspective view similar to FIG. 3 showing a chainsaw
with the cutter chain and chainbar clamped in a horizontal position
on the accessory carrier and service stand of the present
invention.
FIG. 5 is a perspective view of the two-way clamp of the present
invention.
DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring to the drawings and particularly to FIGS. 1 and 2, there
is shown a combined accessory carrier and service stand indicated
generally at 10. The accessory carrier and service stand has a
box-like body 12 that has a bottom 14, two side walls 16, a first
end wall 18 and a second end wall 20.
Second end wall 20 has a threaded receptacle 22 fixed to it. A
similar threaded receptacle (not shown) is fixed to the outside of
the bottom 14 for a purpose to be described. An elongated member 24
serves the dual function of a handle and a support pole for the
accessory carrier and service stand 10. The elongated member 24 is
preferably formed from a section of cylindrical pipe that is
threaded on one end to be received by the receptacle 22 and that
has a slot 26 (FIG. 2) formed on the other end.
A ground engaging support 28 having a tubular body 30 is provided
to receive the slotted end of elongated member 24. A pair of
diametrically extending pins 32 extend through the tubular body 30
to cooperate with the slot 26 in elongated member 24 to prevent
relative rotation of the elongated member 24 when it is positioned
within tubular body 30. The ground engaging support 28 also has a
pair of spikes 34 formed thereon so that the ground engaging
support 28 will solidly engage the ground when the spikes 34 are
driven into the ground as shown in FIGS. 3 and 4.
The box-like body 12 also has a chainsaw power head support table
top 36 which is preferably formed of a plastic material. The
chainsaw power head support table top 36 is contoured to fit over
the side walls 16 and to have a ridge at the front portion thereof
so that the table top 36 conveniently supports the power head of a
chainsaw. The support table top 36 is connected by hinges 38 to the
first end wall 18 of the box-like body 12.
Atop the second end wall 20 of box-like body 12, a clamp 40 is
secured by hinges 42. The clamp 40, as best seen in FIG. 5, has a
fixed vertical clamp member 44 and a fixed horizontal clamp member
46 which extend at 90.degree. from an intersection where they meet.
A pivoting clamp member 48 is pivotally received upon a bolt 50 at
the intersection of fixed vertical clamp member 44 and fixed
horizontal clamp member 46. A first latch 52 is fixed to the
pivoting clamp member 48 and cooperates with a first latch
receptacle 54 formed in the vertical clamp member 44 so that the
pivoting clamp member may be latched to the fixed vertical clamp
member. A second latch 56 is positioned on the horizontal clamp
member 46 and cooperates with a second latch receptacle 58 formed
in the pivoting clamp member 48. Latching of the second latch 56 to
the second latch receptacle 58 selectively clamps the pivoting
clamp member 48 to the fixed horizontal clamp member 46.
The fixed vertical clamp member 44 of clamp 40 has protrusions 60
formed thereon. Similarly, the pivoting clamp member 48 has
protrusions 62 formed thereon. In a manner to be described, the
protrusions 60 and 62 cooperate to clamp the chain bar of a
chainsaw vertically while permitting the chain to move relative to
the chain bar.
As seen in FIGS. 3 and 4, the combined accessory carrier and
service stand 10 is in the service stand configuration and supports
a chainsaw 64. The chainsaw 64 is conventional in all respects and
forms no part of the present invention As a typical chainsaw, the
chainsaw 64 has a power head 66, a cutting chain 68, a chain bar
70, a gasoline port 72 and an oil port 74.
As seen in FIG. 3, the chainsaw 64 is positioned so that the power
head 66 is supported by the support table top 36. The chainsaw is
positioned so that the cutting chain 68 and chain bar 70 are in a
vertical position. In that position, the pivoting clamp member 48
of the clamp 40 is engaged with the vertical clamp member 44 by
means of the first latch 52 and first latch receptacle 54. The
protrusions 60 and 62 on the vertical clamp member 44 and the
pivoting clamp member 48, respectively, engage the chain bar 70 of
the chainsaw 64, but permit the chain 68 to pass freely between the
vertical clamp member 44 and the pivoting clamp member 48.
In the vertical position of the chainsaw as shown in FIG. 3, the
chain may be serviced by tensioning the chain, sharpening the
chain, or otherwise handling repairs to the chain.
Referring to FIG. 4, the chainsaw 64 is shown with the chain bar 70
in a horizontal position clamped between the pivoting clamp member
48 and the horizotal clamp member 46 by means of engagement of the
second latch 56 and second latch receptacle 58. In this position of
the chainsaw 64, the gasoline port 72 and the oil port 74 are
readily accessible for refueling and adding oil to the chainsaw
power head 66.
Referring to FIG. 1, it will be seen that in the accessory carrier
configuration, the combined accessory carrier and service stand 10
of the present invention has the elongated member 24 threaded into
the receptacle 22 on second end wall 20. The elongated member 24
extends through a hole 19 in the first end wall 18 (FIG. 2) so that
the elongated member 24 serves as a handle. The chainsaw power head
support table top 36 is pivoted about hinges 38 so that it lies
outside the box-like body 12 and adjacent to the first end wall 18.
The clamp 40 is pivoted about hinges 42 so that it lies within the
box-like body 12 and does not extend above the body. A container of
gasoline 76 is shown in position outside second end wall 20 while
supported on bottom 14 and secured in place by an adjustable
lashing strap 78. In the accessory carrier configuration of FIG. 1,
the box-like body 12 may be utilized to carry tools, spare parts,
oil, and other accessories for a chainsaw. The ground engaging
support 28 is also carried within the box-like body 12 in the FIG.
1 configuration.
When it is desired to convert the combined accessory carrier and
service stand 10 to the service stand configuration shown in FIGS.
2, 3 and 4, the elongated member 24 is unthreaded from receptacle
22 in end wall 20 and threaded into a similar receptacle (not
shown) in the bottom 14. The elongated member then serves as a pole
support for the box-like body 12. The ground engaging support 28 is
driven into the ground so that spikes 34 are buried as shown in
FIGS. 3 and 4. The elongated member 24 is then inserted into the
tubular body 30 of ground engaging support 28. The chainsaw power
head support table top 36 is then pivoted about hinges 38 to a
horizontal position as shown in FIG. 2. The clamp 40 is pivoted
about hinges 42 until it is positioned atop the second end wall 20
of the box-like body 12. When the chainsaw 64 is supported on the
accessory carrier and service stand 10 the chainsaw 64 is a
convenient height from the ground to service the chainsaw and to
prevent parts and tools from being mislaid or lost in leaves and
brush on the ground.
According to the provisions of the Patent Statutes, I have
explained the principle, preferred construction and mode of
operation of my invention and have illustrated and described what I
now consider to represent its best embodiment. However, it should
be understood that, within the scope of the appended claims, the
invention may be practiced otherwise than as specifically
illustrated and described.
* * * * *